Is there such a thing as a road specific saddle? I've been on my fixed (first "road" bike ever) for a couple months and my ass still hurts after a couple miles. The saddle is at the correct height, correct position for and aft, and correct angle, but it still hurts like hell. I have the exact same saddle on my mountain bike, and I have never had this problem. I think it is the position I am put in on a road bike compared to a mtb? Is there a general rule of thumb when picking a saddle for a road bike? Should it be more narrow? Longer?